There are three Robin nests and one Cardinal nest on my little urban farm. Last month, those pesky little buggers considered it their responsibility to peck one hole in every strawberry. Now it's the blueberries they love.
Garden centers sell bird netting designed to protect crops. We've never purchased that kind of netting, but friends recently gave us one large net because they disliked how the netting entrapped little critters, causing panic and torture.
I buy netting at the discount fabric store. There are two kinds of netting: soft netting designed for dance costumes and sturdy netting designed for craft projects. I cut the sturdy stuff into 3 yard lengths and lay it directly over the strawberry plants, tucking in at the edges of the raised beds. This netting lasts for a few seasons before needing to be replaced.
This year we've designed a simple structure of PVC pipe to suspend the netting over the blueberry bushes. The ends are clothes-pinned to the chicken wire fences. One day I noticed a male Cardinal flapping about under one net, but he escaped at the open end and did not return. Success!